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參數資料
| 型號： | ADS8422IPFBT |
| 英文描述： | 16-BIT, 4-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE |
| 中文描述： | 16位4 MSPS的，偽雙極，全差分輸入，微采樣模擬到數字轉換并行接口，參考 |
| 文件頁數： | 3/25頁 |
| 文件大小： | 816K |
| 代理商： | ADS8422IPFBT |
www.ti.com
SPECIFICATIONS
T
A
= –40
°
C to 85
°
C, +VA = 5 V, +VAREG = 5 V to 3 V, +VBD = 5 V to 2.7 V, f
SAMPLE
= 4 MSPS, V
ref
= 4.096 V (measured
with internal reference buffer) (unless otherwise noted)
ADS8422
SLAS512B–JUNE 2006–REVISED DECEMBER 2006
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ANALOG INPUT
Full-scale input voltage
(1)
+IN – (–IN)
–V
ref
–0.2
V
ref
V
+IN
V
ref
+ 0.2
V
ref
+ 0.2
(V
ref
)/2 + 0.2
Absolute input voltage
V
–IN
–0.2
Common-mode input range
(V
ref
)/2 – 0.2
(V
ref
)/2
V
Input capacitance
30
pF
Input leakage current
1
nA
SYSTEM PERFORMANCE
Resolution
16
Bits
ADS8422I
15
No missing codes
Bits
ADS8422IB
16
ADS8422I
–6
±
2
±
1
6
LSB
Integral linearity
(2)(3)
(16 bit)
(2)
ADS8422IB
–2
2
ADS8422I
–2
±
0.7
±
0.7
±
0.25
±
0.2
±
0.05
2
LSB
(16 bit)
Differential linearity
ADS8422IB
–1
1.5
Offset error
–0.5
0.5
mV
Offset error drift
ppm/
°
C
%FS
Gain error
(4)(5)
V
ref
= 4.096 V
V
ref
= 4.096 V
At dc
–0.1
0.1
Gain error drift
±
2
81
ppm/
°
C
Common-mode rejection ratio
dB
At code 0000h with [+IN + (–IN)]/2 =
512 mV
pp
at 500 kHz,
At 0000h output code
78
Noise
40
μ
V RMS
dB
Power supply rejection ratio
At 8000h output code
78
SAMPLING DYNAMICS
Conversion time
0.180
μ
s
μ
s
MHz
Acquisition time
0.070
Throughput rate
4
Aperture delay
3
ns
Aperture jitter
7
ps RMS
Step response
70
ns
Overvoltage recovery
140
ns
(1)
(2)
(3)
(4)
(5)
Ideal input span, does not include gain or offset error.
LSB means least significant bit and is equal to 2V
REF
/65536.
This is endpoint INL, not best fit.
Measured relative to an ideal full-scale input [+IN – (–IN)] of 8.192 V.
This specification does not include the internal reference voltage error and drift.
3
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| ADS8422IPFBTG4 | 功能描述:模數轉換器 - ADC 16-Bit MSPS Parallel ADC W/Ref RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS8471 | 制造商:BB 制造商全稱:BB 功能描述:16-BIT, 1-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE |
| ADS8471IBRGZR | 功能描述:模數轉換器 - ADC 16B 1MSPS Psuedo- Diff SAR ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS8471IBRGZRG4 | 功能描述:模數轉換器 - ADC 16B 1MSPS Psuedo Diff SAR ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS8471IBRGZT | 功能描述:模數轉換器 - ADC 16B 1MSPS Psuedo- Diff SAR ADC W/ Ref RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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